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TY - CONF AU - Li, P. AU - He, T.H. AU - Li, M. AU - Liu, J. AU - Liu, Y. AU - Luo, X. AU - Pan, Q. AU - Shan, L.J. AU - Shen, X. AU - Wang, H. AU - Wang, J. AU - Wu, D. AU - Xiao, D.X. AU - Xu, Y. AU - Yan, L.G. AU - Zhang, P. AU - Zhou, K. ED - Schaa, Volker R.W. ED - Decking, Winfried ED - Sinn, Harald ED - Geloni, Gianluca ED - Schreiber, Siegfried ED - Marx, Michaela TI - First Lasing at the CAEP THz FEL Facility J2 - Proc. of FEL2019, Hamburg, Germany, 26-30 August 2019 CY - Hamburg, Germany T2 - Free Electron Laser Conference T3 - 39 LA - english AB - China Academy of Engineering Physics terahertz free electron laser (CAEP THz FEL, CTFEL) is the first THz FEL user facility in China, which was an oscillator type FEL. This THz FEL facility consists of a GaAs photocathode high-voltage DC gun, a superconducting RF linac, a planar undulator and a quasi-concentric optical resonator. The terahertz laser’s frequency is continuous adjustable from 0.7 THz to 4.2 THz. The average power is more than 10 W and the micro-pulse power is more than 0.3 MW. In this paper, the specific parameters and operation status of CTFEL are presented. Finally, some user experiments are introduced briefly. PB - JACoW Publishing CP - Geneva, Switzerland SP - 11 EP - 14 KW - FEL KW - electron KW - laser KW - free-electron-laser KW - high-voltage DA - 2019/11 PY - 2019 SN - 978-3-95450-210-3 DO - doi:10.18429/JACoW-FEL2019-MOA03 UR - http://jacow.org/fel2019/papers/moa03.pdf ER -